FREE, visually appealing and clutter-free US stock market index tracker ! Stock Market Pulse shows a visually colorful yet zen-like simple view of US stock market indexes - Dow Jones, S&P 500 and NASDAQ. By just a tap on the heart, view the numeric market index, up and down points and percentage (disclaimer: approximately 20 minutes delayed quotes). The heart on the screen beats higher or lower with the movement of the market index. Color of the heart changes depending on whether the market.